US3105214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture measuring apparatus
Assignee: University of California Berkeley
•
Filing: 1959-02-25
•
Granted: 1963-09-24
•
Expires: 1979-02-25
Abstract
No abstract record available.
Inventors
- 👤 William R Blythe
- 👤 Klein Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:47
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/12; G01N27/121
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A MOISTURE METER PROBE WHOSE RESPONSE IS SUBSTANTIALLY UNCHANGED BY THE PRESENCE OF IONIZALBE MATERIAL IN AN ENVIRONMENT WHOSE CONTAINED MOISTURE IS TO BE MEASURED, COMPRISING A PAIR OF SPACED-APART ELECTRICAL CONDUCTORS; A HYDROSCOPIC MEDIUM EXTENDING BETWEEN THE CONDUCTORS; WATER-VAPOR-PERMEABLE ION-SELECTIVE MEMBRANE COVERING SAID MEDIUM AND CONDUCTORS FOR ISOLATING SAID MEDIUM AND CONDUCTORS FROM IONS THAT AFFECT THE CONDUCTIVITY OF MOISTURE, AND AN ELECTRICAL LEAD FROM EACH SAID CONDUCTOR EXTENDING OUT FROM SAID ION-SELECTIVE MEANS AND SEALED THERETHROUGH.
Claim 2
Dependent Claim
78 words
A MOISTURE METER PROBE WHOSE RESPONSE IS SUBSTANTIALLY UNCHANGED BY THE PRESENCE OF IONIZALBE MATERIAL IN AN ENVIRONMENT WHOSE CONTAINED MOISTURE IS TO BE MEASURED, COMPRISING A PAIR OF SPACED-APART ELECTRICAL CONDUCTORS; A HYDROSCOPIC MEDIUM EXTENDING BETWEEN THE CONDUCTORS; WATER-VAPOR-PERMEABLE ION-SELECTIVE MEMBRANE COVERING SAID MEDIUM AND CONDUCTORS FOR ISOLATING SAID MEDIUM AND CONDUCTORS FROM IONS THAT AFFECT THE CONDUCTIVITY OF MOISTURE, AND AN ELECTRICAL LEAD FROM EACH SAID CONDUCTOR EXTENDING OUT FROM SAID ION-SELECTIVE MEANS AND SEALED THERETHROUGH.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |